In my 2003 Opel Agila 1.2, I try to save fuel and stop the engine manually (by turning the key) when in traffic or waiting at traffic lights etc.
Sometimes when in traffic I can stop and start my engine up to 5-10 times in 10 minutes.
Somebody told me this can destroy my starter motor, but my engine starts up in under a second, so there is not much cranking happening.
Am I wearing things out by stopping and starting the engine multiple times?
Note that my car does not have Start-Stop technology.